Reamer.



No. 777,154. v PATENTED DEC. 13, 1904. J. SMITH.

REAMER.

APPLICATION FILED AUG. 29. 1903.

N0 MODEL.

w/rmsss mnwron Jaw 3 5m z 1% gag/W- er d ATTORNEYS UNTTTJn STaThs Patented December 13, 1904.

JOSEPH SMITH, OF NEW YORK, N. Y.

lqEAMEH.

SPECIFICATION forming part of Letters Patent No. 777,154, dated December 13, 1904. Application filed August 29, 1903. erial No. 171,305. (No model.)

To coll whom, it may concern:

Be it known that I, JOSEPH SMITH, a citizen of the United States, residing at New York,

county of New York, and State of New York, a

have invented certain new and useful Improvements in Reamers, of which the following is a specification, such as will enable those skilled in the art to which it appertains to make and use the same.

My invention has particular relation to devices for securing water-basins to marble slabs or tables, and particularly to reamers employed in forming holes in the bottom of a marble slab or table and in connection with which are employed screws of novel construction and by means of which a basin may be secured tothe bottom of said slab or table. The screws referred to are described in this application, but are not claimed herein, and constitute the subject of a divisional application based on this case as originally filed, Serial N 0. 200,330, filed on the 28th day of March, 1904; and the invention described and claimed herein consists of the tool or reamer for forming the holes in the marble slab or table in connection with which said screws are employed.

The invention is fully disclosed in the following specification, of which the accompanying drawings form a part, in which the separate parts of my improvement are designated by suitable reference characters in each of the views, and in which- Figure l is a side view of a reaming-tool which constitutes the subject-matter of this application; Fig. 2, a section on the line 2 2 of Fig. 1; Fig. 3, a partial section on theline 3 3 of Fig. 2; Fig. 4, a side'view of one part of the reamer; Fig. 5, a view similar to Fig. 4', but showing a modification partially in section; Fig.- 6, a section of the part of the slab or table with which a basin is to be connected and showing one of the holes formed therein before it is reamed out and adapted to receive one of the fastening-screws, and Fig. 7 a View similar to 6 and showing the hole reamed out and ready to receive a fastening-screw.

My improved reamer is shown in Figs. 1 to 5, inclusive, and comprises a cylindrical body portion 0;, having a tapered head a, which is practice the reamer is operated.

' angular in cross-section and adapted. to be inserted into an ordinary brace by which in The body portion e of the reamer is provided in its opposite sides with longitudinal recesses a", which receive the sides of a yoke-shaped member 6, having a head portion The yokeshaped member?) is free to slide in thelongitudinal recesses a in the body portion a of the reamer, and said body portion is provided adjacent to the head end (1 thereof with a transverse slot (1.", which extends therethrough and communicates with the longitudinal recesses a", and the sides 7/ of the yoke-shaped member 6 are connected at their ends by a bolt 0, which passes therethrough and through the slot (4" and is provided at its opposite ends with beads or thumb and linger pieces 0 The head If of the yoke-shaped member 72 is circular in form and of the same diameter as the body portion a of the reamer, and the end of the body portion a of the reamer opposite the head member a thereof is provided with a central longil'mlinal slot a, which also communicates with the longitudinal recesses a and which opens outwardly through the said end of the body portion a of the device, and passing through said body portion a of the device at right angles to the bolt 0 and through the slot a is a pivot-pin (Z, on which are mounted two cutting-blades (a. The cuttingblades 6 are straight on their outer faces and segmental in shape on their in nerfaces or back edges, and the cutting portions thereof extend only for about half the length of the straight edges thereof and are set outwardly therefrom.

The sides 7) of the yoke-shaped member 7) are provided in the outer ends thereof or adjacent to the head 6 and on the opposite sides thereof with recesses f, and the lower, inner, and back walls of these recesses are curved or segmental in form, as shown atf to correspond with the adjacent parts of the blades 0, and the upper walls thereof are inclined downwardly and on twardly at the outer sides of the side members If of the yoke-shaped member. 7;, as shown at f, the angle of this inclination being approxi mately forty-five degrees, while at the inner sides of said side members I)" of the yoke-shaped member 6 the upper walls of said recesses are l inclined at an angle of about five degrees to a vertical line, as shown at in Fig. 4;, and the object of this construction is to permit the bladeseto operate in the manner hereinafter described.

In Figs. 6 and 7 I have shown at g a part of a marble slab or table to which a basin is to be secured, and the object of the reamer herein shown and described is to enlarge a hole ZL, formed in the slab or table g, as shown in Fig. 6, by an ordinary tool in the manner shown at if in Fig. 7 for the purpose of receiving the head of a screw.

In Figs. 6 and 'Z the marble slab or table is shown inverted; but one of the chief objects of this invention is to provide means for securing a basin to the bottom of a marble slab or table without displacing said slab or table or interfering in any way with the plumbing around the same. In this operation a hole it similar to that shown in Fig. 6 is formed in the bottom of the slab or table, and the head 6 of the reamer is inserted into this hole, while the parts of the reamer are in the position shown in Fig. 3. \Vhen the head of the reamer has been inserted into the hole as above described, pressure on the head a of the reamer will operate to throw the blades 6 into the position shown in dotted lines in Fig. 3, and the tool may then be turned by an ordinary brace in the usual manner. It will be understood that the blades 0 are gradually thrown out as upward pressure is applied to the tool or reamer and as the latter is turned and the hole it in the slab or table 5 is gradually enlarged, as shown at if in Fig. 7.

In Fig. 5 the yoke-shaped member Z) is provided with a head Z)", which is formed separately therefrom and between which and the yoke-shaped member proper are placed ballbearings 5 the connection between the head Zf and the yoke-shaped member 6 being made by means of a pivot-pin, screw, or similar device Z). It will be understood that when the reamer is in operation the head of the yokeshaped member 6 is pressing on the bottom of the hole It, which is being enlarged, and said reamer or tool is being rapidly revolved, and by forming these parts, as shown in Fig. 5, the friction is reduced.

It will be understood that when the reamer or tool is not in use the yoke-shaped piece 6 is moved outwardly, as shown in Fig. 3, and the blades 6 do not project beyond the sides of the tool; but as pressure is applied to the head Z) of the tool and the yoke-shaped piece Z) moved downwardly thereon or upwardly thereon, as the case may be, the blades 0 move outwardly, and as the tool is rapidly turned and pressure applied the outward movement of said blades increases until they assume the position shown in dotted lines in Fig. 3. As

the tool is drawn out of the work or workpiece the yoke-shaped piece Z) moves outwardly or downwardly or upwardly, as the case may be, and the blades a returned to the position shown in full lines in Fig. 3, and both of these operations are occasioned by the particular form of the recesses f and the top and bottom walls thereof. It will also be apparent that the yoke-shaped member Z) may be moved in either direction by placing a thumb and finger on the ends 0 of the bolt 0, and the blades 6 may thus be projected, as shown in dotted lines in Fig. 3, or withdrawn into the body of the tool, as shown in full lines in said figure.

Having fully described my inventlon, what I claim as new, and desire to secure by Letters Patent, is

l. A reaming-tool of the class described, comprising a cylindrical body portion provided with longitudinal recesses in the opposite sides thereof, a yoke-shaped slide member mounted in said recesses and provided with a head which corresponds with the end of the body portion of the tool, and the sides of which are provided adjacent to said head with lateral recesses at their opposite sides, the bottom walls of which are curved in form and the top walls of which are inclined downwardly and outwardly, said body portion of the tool being also provided at its outer end with a longitudinal slot, cutting-blades pivoted in said slot and adapted to be projected through said lateral recesses, the backs of said cutting-blades being curved or segmental in form and the front edges thereof being straight and the cutting portions thereof being projected, and means for limiting the movement of the yoke-shaped member longitudinally of the body portion of the tool, substantially as shown and described.

2. A tool of the class described,-comprising a cylindrical body portion having longitudinal recesses in its opposite sides, a yoke-shaped slide member mounted in said recesses and the head of which corresponds with the corresponding end of the body portion of the tool, said end of the body portion of the tool being also provided with a longitudinal slot, and the sides of theyoke-shaped slide member be ing provided adjacent to the head thereof and in the opposite sides thereof with laterallydirected recesses which open outwardly, cutting-blades pivoted in said slot and adapted to be projected through said recesses by the longitudinal movement of the slide member and means for limiting the longitudinal movement of the slide member, substantially as shown and described.

3. A tool of the class described, comprising a cylindrical body portion having longitudinal recesses in its opposite sides, a yoke-shaped slide member mounted in said recesses and the head of which corresponds with the corre sponding end of the body portion of the tool, said end of the body portion of the tool being also provided with a longitudinal slot, and

the sides of the yoke-shaped slide member being provided adjacent to the head thereof and in the opposite sides thereof with laterallydirected recesses Which open outwardly, cutting-blades pivoted in said slot and adapted to be projected through said recesses by the longitudinal movement of the slide member, and. means for limiting the longitudinal movement of the slide member, said body portion being also adapted at one end to be connected I with a brace, substantially as shown and described.

JOSEPH SMITH. Witnesses:

Gnonen A. SMITH, WILLIAM SMITH. 

